From patchwork Mon Dec 26 21:12:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Mogilappagari, Sudheer" X-Patchwork-Id: 13081936 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90A57C4167B for ; Mon, 26 Dec 2022 21:17:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232246AbiLZVRH (ORCPT ); Mon, 26 Dec 2022 16:17:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229491AbiLZVRF (ORCPT ); Mon, 26 Dec 2022 16:17:05 -0500 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DCD5F102B for ; Mon, 26 Dec 2022 13:17:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1672089422; x=1703625422; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=qHZflGGd/XIiqZaj0s9amWFmY6LSEofX0Db5wJ3+wYU=; b=XpbQRH/6S9a1aOW/5BAzLD6aIilc7Nt1TS5r8CZfoP1wliAnRRgAYQX7 ZhzSSk/LR2qUUAl6GQBAFDUAVgoNwOE5kxAuUTWPpurZ+nr61/vmWJcHz CS4oj1egrBbbRRlF0c9eoyEnbxOIrwG9D22R8s1/rH+Erh5s96vwDs5mC 8c1sHSwXoNwZfqyGPajKwDj/GKYF/4wcednjjAQ8h+hiz/Ro2NMGcnPzJ DDoduhnAuCAQ4AATLLnyXFcc+EPt5YdoxAJr0ciShZxGnFuYvv8gvsm70 /NzshJujLeTFW2AQ1/qAsnRMUD3VKTg4TbBmy/ayn6/7Ii9djmeXYtJoP Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10572"; a="300969804" X-IronPort-AV: E=Sophos;i="5.96,276,1665471600"; d="scan'208";a="300969804" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Dec 2022 13:17:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10572"; a="683432750" X-IronPort-AV: E=Sophos;i="5.96,276,1665471600"; d="scan'208";a="683432750" Received: from msu-dell.jf.intel.com ([10.166.233.5]) by orsmga008.jf.intel.com with ESMTP; 26 Dec 2022 13:17:02 -0800 From: Sudheer Mogilappagari To: netdev@vger.kernel.org Cc: kuba@kernel.org, mkubecek@suse.cz, andrew@lunn.ch, sridhar.samudrala@intel.com, anthony.l.nguyen@intel.com Subject: [PATCH ethtool-next v3 0/2] add netlink support for rss get Date: Mon, 26 Dec 2022 13:12:24 -0800 Message-Id: <20221226211226.2084364-1-sudheer.mogilappagari@intel.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: mkubecek+ethtool@suse.cz These patches add netlink based handler to fetch RSS information using "ethtool -x [context %d]" command. Output without --json option $ethtool -x eno2 RX flow hash indirection table for eno2 with 8 RX ring(s): 0: 0 0 0 0 0 0 0 0 8: 1 1 1 1 1 1 1 1 ...skip similar lines... 120: 7 7 7 7 7 7 7 7 RSS hash key: be:c3:13:a6:59:9a:c3:c5:d8:60:75:2b:4c:b2:12:cc:5c:4e:34: 8a:f9:ab:16:c7:19:5d:ab:1d:b5:c1:c7:57:c7:a2:e1:2b:e3:ea: 02:60:88:8e:96:ef:2d:64:d2:de:2c:16:72:b6 RSS hash function: toeplitz: on xor: off crc32: off Sample output with json option: $ethtool --json -x eno2 [ { "ifname": "eno2", "rss-indirection-table": [ 0,0,0,0,0,0,0,0,1,1,1,1,1,1,1, ...skip similar lines... 7,7,7,7,7,7,7,7 ], "rss-hash-key": [ 190,195,19,166,..] "rss-hash-function": { "toeplitz": "on", "xor": "off", "crc32": "off" } } ] Signed-off-by: Sudheer Mogilappagari --- v3: -Made hash key as an array of ints. -Skip json field when not supported. -Formatted key strings as per review comments. v2: -Added json support --- Sudheer Mogilappagari (2): Move code that print rss info into common file netlink: add netlink handler for get rss (-x) Makefile.am | 2 +- common.c | 43 ++++++++ common.h | 7 ++ ethtool.c | 46 +------- netlink/desc-ethtool.c | 11 ++ netlink/extapi.h | 2 + netlink/rss.c | 241 +++++++++++++++++++++++++++++++++++++++++ 7 files changed, 311 insertions(+), 41 deletions(-) create mode 100644 netlink/rss.c